Diamond S
I have the Diamond S Titanium "quiet" can on my 2016 ZR 8000 and I love it, not too loud but definitely throatier than stock! It claims it will pass the DNR db test? I would have to agree, its not obnoxious at speed or WOT, but definitely sounds louder and better than stock, plus you lose about 17lbs or so!! I swear I thought they shipped me a empty box when I received it! As for performance improvement?? I didn't notice at first, but that could mostly be due to putting it on during the "break in period"? It seems faster now that I have 1000 miles on it and the can has held up very well! There is NO packing to break down, so it still sounds the same after 850 miles. They do make a lighter "mountain style" can as well, it is louder though and that one doesn't pass the trail db test. It is 1.5 lighter however. The quiet can weighs in at 3 lbs if I remember though! Shockingly light, but it is made of Titanium:grin
Once it snows, I'm going to do a side by side comparison video with my other ZR8000 that is stock, so you can here the difference. I want the video sound bite on snow where you will get the most accurate sound that you are looking for! I have a video out on youtube before and after, but its on my concrete driveway and I didn't give enough throttle for a good comparison :-(
